GlClearColor - mkilgore/QB64pe GitHub Wiki

_glClearColor: specify clear values for the color buffers

SUB _glClearColor (BYVAL red AS SINGLE, BYVAL green AS SINGLE, BYVAL blue AS SINGLE, BYVAL alpha AS SINGLE)

void _glClearColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);

red, green, blue, alpha

Specify the red, green, blue, and alpha values used when the color buffers are cleared. The initial values are all 0.

_glClearColor specifies the red, green, blue, and alpha values used by _glClear to clear the color buffers.

The type of the red, green, blue, and alpha parameters was changed from GLclampf to GLfloat. This change is transparent to user code.

_glGet with argument _GL_COLOR_CLEAR_VALUE

SUB _GL _glClear

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